Amazon Lambda

AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers, automatically scaling and executing your code in response to events from over 200 AWS services and SaaS applications while you pay only for the compute time you consume.

Amazon Lambda publishes 2 APIs on the APIs.io network: Event Source Mappings API and Functions API. Tagged areas include Compute, Event-Driven, Function-as-a-Service, Functions, and Serverless.

The Amazon Lambda catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Amazon Lambda’s developer surface includes authentication, developer portal, documentation, support, engineering blog, developer console, signup flow, and 27 more developer resources.

🌐 Visit website 📡 Source on GitHub

61.8/100 strong ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs 7 Features 4 Use Cases

Compute Event-Driven Function-as-a-Service Functions Serverless

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 61.8/100 · strong

Contract Quality 15.1 / 23

Developer Ergonomics 14.4 / 18

Access Clarity 12.5 / 18

Operational Transparency 4.3 / 12

Contract Governance 3.1 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/amazon-lambda: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Amazon Lambda Event Source Mappings API

Lambda event source mapping management

Amazon Lambda Functions API

Lambda function management

Postman Collections 1

Ready-to-run Postman collections for exercising this provider's APIs.

Amazon Lambda API

POSTMAN

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Amazon Lambda Event Source Mappings API

OPEN COLLECTION

Amazon Lambda Event Source Mappings Functions API

OPEN COLLECTION

Amazon Lambda API

OPEN COLLECTION

Arazzo Workflows 8

Multi-step API workflows described with the Arazzo specification.

Amazon Lambda Decommission Function

Confirm a function exists, read its configuration, then delete it.

ARAZZO

Amazon Lambda Deploy and Invoke Function

Create a Lambda function, wait for it to become Active, then invoke it.

ARAZZO

Amazon Lambda Deploy Function With Event Source

Create a function, wait until Active, attach an event source mapping, and wait until Enabled.

ARAZZO

Amazon Lambda Provision Event Source Mapping

Create an event source mapping and poll it until it reaches the Enabled state.

ARAZZO

Amazon Lambda Reconfigure Function

Change a function's runtime settings, wait for Active, then invoke to verify.

ARAZZO

Amazon Lambda Redeploy Discovered Function

List functions, select one by name, push new code, and wait until Active.

ARAZZO

Amazon Lambda Teardown Event Source Mapping

Locate an event source mapping in the list, confirm its details, then delete it.

ARAZZO

Amazon Lambda Update Code and Verify

Push new function code, wait for the update to settle, then invoke to verify.

ARAZZO

Scroll for all 8

GraphQL 1

GraphQL schemas published by this provider.

Amazon Lambda GraphQL API

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Amazon Lambda Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Amazon Lambda Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Amazon Lambda Finops

FINOPS

Features 7

Notable capabilities this provider offers.

Serverless Execution

Run code without provisioning or managing servers — Lambda handles all administration.

Event-Driven Triggers

Automatically trigger code from over 200 AWS services and SaaS applications.

Automatic Scaling

Automatically scales to thousands of concurrent executions without configuration.

Multiple Runtimes

Supports Node.js, Python, Java, Go, Ruby, .NET, and custom runtimes via Lambda layers.

Lambda Layers

Package and share code, libraries, and configurations across Lambda functions.

Container Image Support

Deploy Lambda functions as container images up to 10 GB in size.

SnapStart

Reduce cold starts for Java functions with Lambda SnapStart.

Scroll for all 7

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Amazon Lambda Context

2 classes · 7 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Amazon Lambda API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Amazon Lambda API Rules

24 rules · 9 errors 15 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

EventSourceMapping

5 properties

JSON SCHEMA

Function

12 properties

JSON SCHEMA

JSON Structure 2

JSON Structure definitions describing this provider's data shapes.

Amazon Lambda Event Source Mapping Structure

5 properties

JSON STRUCTURE

Amazon Lambda Function Structure

12 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Amazon Lambda Event Source Mapping Example

5 fields

EXAMPLE

Amazon Lambda Function Example

12 fields

EXAMPLE

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Amazon Lambda Authentication

apiKey · 1 scheme

SECURITY

Amazon Lambda Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Amazon Lambda Vulnerability Disclosure

security.txt · contact published

SECURITY

Amazon Lambda Trust Center

PCI DSS, HIPAA, FedRAMP, GDPR, FIPS 140

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Amazon Lambda Agentic Access

11 operations · 7 acting

AGENTIC

Use Cases 4

What developers build with this provider.

API Backends

Build REST and GraphQL API backends with Lambda and API Gateway.

Data Processing

Process S3 uploads, DynamoDB streams, and Kinesis records in real time.

Event Automation

Automate operational tasks triggered by CloudWatch events or schedules.

Machine Learning Inference

Run ML model inference on-demand without managing inference infrastructure.

Integrations 6

Pre-built integrations with other platforms and tools.

Amazon API Gateway

Build REST and WebSocket APIs backed by Lambda functions.

Amazon DynamoDB

Trigger Lambda from DynamoDB Streams for real-time data processing.

Amazon S3

Trigger Lambda on S3 object events for serverless file processing.

Amazon Kinesis

Process Kinesis data streams with Lambda for real-time analytics.

AWS Step Functions

Orchestrate Lambda functions in serverless workflows.

Amazon SQS

Process SQS messages with Lambda for decoupled event processing.

Resources

Get Started 5

Portal, sign-up, and the first successful call

Portal

Portal

Console

Signup

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 10

Pagination, idempotency, versioning, errors, and events

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

SpectralRules

Vocabulary

Scroll for all 10

Build 2

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

Security

Compliance

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 4

Status, limits, changes, and where to get help

Support

StatusPage

StackOverflow

Contact

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Knowledge Center

Knowledge Center

Source (apis.yml)

name: Amazon Lambda
description: AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers, automatically
  scaling and executing your code in response to events from over 200 AWS services and SaaS applications while you pay only
  for the compute time you consume.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
specificationVersion: '0.23'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://a0.awsstatic.com/libra-css/images/logos/aws_logo_smile_1200x630.png
url: https://aws.amazon.com/lambda/
created: '2024-01-15'
modified: '2026-05-19'
apis:
- aid: amazon-lambda:amazon-lambda-event-source-mappings-api
  name: Amazon Lambda Event Source Mappings API
  description: Lambda event source mapping management
  humanURL: https://aws.amazon.com/lambda/
  baseURL: https://lambda.amazonaws.com
  tags:
  - Event Source Mappings
  properties:
  - type: OpenAPI
    url: openapi/amazon-lambda-event-source-mappings-api-openapi.yml
  - type: Documentation
    url: https://docs.aws.amazon.com/lambda/latest/dg/welcome.html
  - type: JSONSchema
    url: json-schema/amazon-lambda-function-schema.json
  - type: JSONLD
    url: json-ld/amazon-lambda-context.jsonld
  - type: Pricing
    url: https://aws.amazon.com/lambda/pricing/
  - type: GettingStarted
    url: https://aws.amazon.com/lambda/getting-started/
  - type: Authentication
    url: https://docs.aws.amazon.com/lambda/latest/dg/lambda-auth-and-access-control.html
  - type: SDKs
    url: https://aws.amazon.com/tools/
  - type: StatusPage
    url: https://status.aws.amazon.com/
  - type: Best Practices
    url: https://docs.aws.amazon.com/lambda/latest/dg/best-practices.html
  - type: FAQ
    url: https://aws.amazon.com/lambda/faqs/
  - type: ServiceLevelAgreement
    url: https://aws.amazon.com/lambda/sla/
  - type: User Guide
    url: https://docs.aws.amazon.com/lambda/latest/dg/
  - type: APIReference
    url: https://docs.aws.amazon.com/lambda/latest/api/
  - type: CLI
    url: https://docs.aws.amazon.com/cli/latest/reference/lambda/
  - type: Security
    url: https://docs.aws.amazon.com/lambda/latest/dg/lambda-security.html
  - type: JSONSchema
    url: json-schema/amazon-lambda-event-source-mapping-schema.json
  - type: GraphQL
    url: graphql/amazon-lambda-graphql.md
- aid: amazon-lambda:amazon-lambda-functions-api
  name: Amazon Lambda Functions API
  description: Lambda function management
  humanURL: https://aws.amazon.com/lambda/
  baseURL: https://lambda.amazonaws.com
  tags:
  - Functions
  properties:
  - type: OpenAPI
    url: openapi/amazon-lambda-functions-api-openapi.yml
  - type: Documentation
    url: https://docs.aws.amazon.com/lambda/latest/dg/welcome.html
  - type: JSONSchema
    url: json-schema/amazon-lambda-function-schema.json
  - type: JSONLD
    url: json-ld/amazon-lambda-context.jsonld
  - type: Pricing
    url: https://aws.amazon.com/lambda/pricing/
  - type: GettingStarted
    url: https://aws.amazon.com/lambda/getting-started/
  - type: Authentication
    url: https://docs.aws.amazon.com/lambda/latest/dg/lambda-auth-and-access-control.html
  - type: SDKs
    url: https://aws.amazon.com/tools/
  - type: StatusPage
    url: https://status.aws.amazon.com/
  - type: Best Practices
    url: https://docs.aws.amazon.com/lambda/latest/dg/best-practices.html
  - type: FAQ
    url: https://aws.amazon.com/lambda/faqs/
  - type: ServiceLevelAgreement
    url: https://aws.amazon.com/lambda/sla/
  - type: User Guide
    url: https://docs.aws.amazon.com/lambda/latest/dg/
  - type: APIReference
    url: https://docs.aws.amazon.com/lambda/latest/api/
  - type: CLI
    url: https://docs.aws.amazon.com/cli/latest/reference/lambda/
  - type: Security
    url: https://docs.aws.amazon.com/lambda/latest/dg/lambda-security.html
  - type: JSONSchema
    url: json-schema/amazon-lambda-event-source-mapping-schema.json
  - type: GraphQL
    url: graphql/amazon-lambda-graphql.md
common:
- type: AgenticAccess
  url: agentic-access/amazon-lambda-agentic-access.yml
- type: TrustCenter
  url: security/amazon-lambda-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/amazon-lambda-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/amazon-lambda-domain-security.yml
- type: Authentication
  url: authentication/amazon-lambda-authentication.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/amazon-lambda/overview
- type: Arazzo
  url: arazzo/amazon-lambda-decommission-function-workflow.yml
  name: Amazon Lambda Decommission Function
- type: Arazzo
  url: arazzo/amazon-lambda-deploy-and-invoke-function-workflow.yml
  name: Amazon Lambda Deploy and Invoke Function
- type: Arazzo
  url: arazzo/amazon-lambda-deploy-with-event-source-workflow.yml
  name: Amazon Lambda Deploy Function With Event Source
- type: Arazzo
  url: arazzo/amazon-lambda-provision-event-source-mapping-workflow.yml
  name: Amazon Lambda Provision Event Source Mapping
- type: Arazzo
  url: arazzo/amazon-lambda-reconfigure-function-workflow.yml
  name: Amazon Lambda Reconfigure Function
- type: Arazzo
  url: arazzo/amazon-lambda-redeploy-discovered-function-workflow.yml
  name: Amazon Lambda Redeploy Discovered Function
- type: Arazzo
  url: arazzo/amazon-lambda-teardown-event-source-mapping-workflow.yml
  name: Amazon Lambda Teardown Event Source Mapping
- type: Arazzo
  url: arazzo/amazon-lambda-update-code-and-verify-workflow.yml
  name: Amazon Lambda Update Code and Verify
- type: Portal
  url: https://aws.amazon.com/
- type: Portal
  url: https://aws.amazon.com/lambda/
- type: Documentation
  url: https://docs.aws.amazon.com/lambda/
- type: TermsOfService
  url: https://aws.amazon.com/service-terms/
- type: PrivacyPolicy
  url: https://aws.amazon.com/privacy/
- type: Support
  url: https://aws.amazon.com/premiumsupport/
- type: Blog
  url: https://aws.amazon.com/blogs/compute/
- type: GitHubOrganization
  url: https://github.com/aws
- type: Console
  url: https://console.aws.amazon.com/lambda/
- type: Signup
  url: https://signin.aws.amazon.com/signup?request_type=register
- type: Login
  url: https://aws.amazon.com/console/
- type: StatusPage
  url: https://health.aws.amazon.com/health/status
- type: Knowledge Center
  url: https://repost.aws/knowledge-center
- type: YouTube
  url: https://www.youtube.com/user/AmazonWebServices
- type: StackOverflow
  url: https://stackoverflow.com/questions/tagged/aws-lambda
- type: Contact
  url: https://aws.amazon.com/contact-us/
- type: Security
  url: https://docs.aws.amazon.com/lambda/latest/dg/lambda-security.html
- type: Compliance
  url: https://aws.amazon.com/compliance/
- type: Features
  data:
  - name: Serverless Execution
    description: Run code without provisioning or managing servers — Lambda handles all administration.
  - name: Event-Driven Triggers
    description: Automatically trigger code from over 200 AWS services and SaaS applications.
  - name: Automatic Scaling
    description: Automatically scales to thousands of concurrent executions without configuration.
  - name: Multiple Runtimes
    description: Supports Node.js, Python, Java, Go, Ruby, .NET, and custom runtimes via Lambda layers.
  - name: Lambda Layers
    description: Package and share code, libraries, and configurations across Lambda functions.
  - name: Container Image Support
    description: Deploy Lambda functions as container images up to 10 GB in size.
  - name: SnapStart
    description: Reduce cold starts for Java functions with Lambda SnapStart.
- type: UseCases
  data:
  - name: API Backends
    description: Build REST and GraphQL API backends with Lambda and API Gateway.
  - name: Data Processing
    description: Process S3 uploads, DynamoDB streams, and Kinesis records in real time.
  - name: Event Automation
    description: Automate operational tasks triggered by CloudWatch events or schedules.
  - name: Machine Learning Inference
    description: Run ML model inference on-demand without managing inference infrastructure.
- type: Integrations
  data:
  - name: Amazon API Gateway
    description: Build REST and WebSocket APIs backed by Lambda functions.
  - name: Amazon DynamoDB
    description: Trigger Lambda from DynamoDB Streams for real-time data processing.
  - name: Amazon S3
    description: Trigger Lambda on S3 object events for serverless file processing.
  - name: Amazon Kinesis
    description: Process Kinesis data streams with Lambda for real-time analytics.
  - name: AWS Step Functions
    description: Orchestrate Lambda functions in serverless workflows.
  - name: Amazon SQS
    description: Process SQS messages with Lambda for decoupled event processing.
- type: SpectralRules
  url: rules/amazon-lambda-spectral-rules.yml
- type: Vocabulary
  url: vocabulary/amazon-lambda-vocabulary.yaml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com
tags:
- AWS
- Compute
- Event-Driven
- Function-as-a-Service
- Functions
- Serverless
tags_raw:
- AWS
- Compute
- Event-Driven
- FaaS
- Functions
- Serverless
x-parent: aws
x-relationship: product

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